20187723745

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{2063}}^1$

素因数の和:2446

約数の個数: 64

約数和(自身を含む): 29674045440

約数和(自身を除く): 9486321695

約数列:

[1, 5, 7, 29, 31, 35, 145, 155, 203, 217, 311, 899, 1015, 1085, 1555, 2063, 2177, 4495, 6293, 9019, 9641, 10315, 10885, 14441, 31465, 45095, 48205, 59827, 63133, 63953, 67487, 72205, 279589, 299135, 315665, 319765, 337435, 418789, 447671, 641593, 1397945, 1854637, 1957123, 2093945, 2238355, 3207965, 4491151, 9273185, 9785615, 12982459, 18606197, 19889383, 22455755, 64912295, 93030985, 99446915, 130243379, 139225681, 576792107, 651216895, 696128405, 2883960535, 4037544749, 20187723745]

約数ペア:

[(1, 20187723745), (5, 4037544749), (7, 2883960535), (29, 696128405), (31, 651216895), (35, 576792107), (145, 139225681), (155, 130243379), (203, 99446915), (217, 93030985), (311, 64912295), (899, 22455755), (1015, 19889383), (1085, 18606197), (1555, 12982459), (2063, 9785615), (2177, 9273185), (4495, 4491151), (6293, 3207965), (9019, 2238355), (9641, 2093945), (10315, 1957123), (10885, 1854637), (14441, 1397945), (31465, 641593), (45095, 447671), (48205, 418789), (59827, 337435), (63133, 319765), (63953, 315665), (67487, 299135), (72205, 279589)]